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JSR 179 and GSM

807588Feb 25 2009 — edited Feb 25 2009
Can we get the co-ordinates using JSR 179 in a mobile device(With out using GPS)? I mean using cell-ID?
If so which are the phones supporting this feature.

Comments

800322
lalvs wrote:
Can we get the co-ordinates using JSR 179 in a mobile device(With out using GPS)? I mean using cell-ID?
http://developers.sun.com/mobility/apis/articles/location/

spatial location can be expressed in the widely used latitude-longitude-altitude coordinate system. Latitude is expressed as 0-90 degrees north or south of the equator, and longitude as 0-180 degrees east or west of the prime meridian, which passes through Greenwich, England. Altitude is expressed in meters above sea level.
If so which are the phones supporting this feature.
+JSR 179 requires the Connected Device Configuration (CDC) or version 1.1 of the Connected Limited Device Configuration (CLDC). CLDC 1.0 isn't adequate because it doesn't support floating-point numbers, which the API uses to represent coordinates and other measurements. The Location API doesn't depend on any particular profile -- it can be used with MIDP or the Personal Profile.

The hardware platform determines which location methods are supported. If it doesn't support at least one location provider, LBS won't be possible. Applications can request providers with particular characteristics, such as a minimum degree of accuracy. Some location methods may be free; others may entail service fees. The application should warn the user before any charges are incurred. +
807588
Thanks a lot. Do you know any devices particularly in Nokia series which is having a method based on cellId?
JoachimSauer
lalvs wrote:
Thanks a lot. Do you know any devices particularly in Nokia series which is having a method based on cellId?
You'll probably have a much better chance of getting that answered on the [Nokia developer forums|http://discussion.forum.nokia.com/forum/] (I've been there before and they are quite helpful).

The details of J2ME implementations are usually rather sparsely documented.
807588
Well, had same kinda question couple of weeks before.

The Nokia API may have lot of API's for the LBS, but its good to check if the service provider has provisions for LBS.
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